Family and Education
b. 1645, 1st s. of John Hay, 1st mq. of Tweeddale [S], and Jean (Jane), da. of Walter Scott, 1st earl of Buccleuch [S]. m. 11 Dec. 1666, Mary (d.1702), da. and coh. John Maitland, 1st duke of Lauderdale [S] and 1st earl of Guilford, 3s. (1 d.v.p.) 2da. d. 20 May 1713; will pr. 12 Aug. 1713. Douglas, Scots Peerage, viii. 456–7.
Offices Held

PC [S] 1670 – 88, 1689­- 1702 – 05; commr. borders [S] 1672, 1673, adm. [S] 1695, auditing treasury accts. [S] 1695 – 97, adm. accts. [S] 1698; ld. treas. [S] 1695; ld. high commr. to parl. [S] 1704; ld. chan. [S] 1704–5. CSP Dom. 1689–90, p. 109; CSP Dom. 1694–5, pp. 428, 445; CSP Dom. 1696, pp. 120, 168; CSP Dom. 1697, p. 480; CSP Dom. 1698, p. 321; CSP Dom. 1704–5, p. 227.

Col. militia regt. (ft.) Haddington 1668 – 75, 1685, Linlithgow and Peebles 1682, capt. militia (horse) Haddington and Berwickshire 1689, ind. troop 1689; CSP Dom. 1689–90, p. 85. commr. supply, Haddington, 1678, 1685, 1690, 1704, Peebles 1678, 1685, Midlothian 1690, 1704, Fifes. 1695, 1704, Berwickshire 1704; sheriff, Haddington 1694 – d.

Burgess, Edinburgh 1668.

FRS 23 May 1666; dir. Co. of Scotland 1694.

Parlimentarian
Associated with: Yester House, Gifford.
Likenesses

oil on canvas by G. Soest, Glasgow Museums Resource Centre; oil on canvas by J. F. Voet, Scot. NPG.

Volume
Lords 1660-1715
Will
Estates
Oxford 1644
No
Addresses
Religion
Image